I like things named after their designer/engineer. So, AW for that. I noticed that the power levels on 5 channels went from 625W to 1225W to 1660W. Kind of a log scale, which you would expect from an amp. So, to keep it simple...

How about Axiom Principle Series AmplifiersP1000-DP1250-DP1500-DOr... Axiom Pure Principle Series AmplifiersPP1000-DPP1250-DPP1500-D

A nice tie-in with the definition of Axiom:

1. a self-evident truth that requires no proof. 2. a universally accepted principle or rule. 3. Logic, Mathematics . a proposition that is assumed without proof for the sake of studying the consequences that follow from it.